> What can an attacker do given the device's built-in capabilities, and what else can they do if they're able to compromise it? well, bmw DIY people have been

> What can an attacker do given the device's built-in capabilities, and what else can they do if they're able to compromise it? well, bmw DIY people have been using the OBDII port (over bluetooth, wifi, and cabled) to rewrite ECM fuel and ignition mappings between models for a very long time... the least clever destructive thing I can think of is just zeroing an ECM out as much as is allowed by the hardware. p.s. i'm sure other car communities do similar stuff; i'm just not well versed on them.